"The chopper had started losing altitude and even disappeared from the radar screens of the Air Traffic Control at 9: 23: 30 hours. By the time the pilots realised what was happening, it was too late," the report said.

The CBI's analysis has also disproved the conspiracy theories floated by YSR's son Jaganmohan.

"He said some prominent people had reasons to eliminate his father. This allegation was looked into and it was found that neither sabotage nor conspiracy was behind the crash.

It was an accident which could have been avoided.

None other than the pilots are responsible for the crash. They chose to go ahead with the flight despite adverse weather conditions," the CBI said in its report submitted to the central and the Andhra Pradesh governments.

The CBI report reveals that YSR had taken off for Chittoor more than an hour late at 8: 38 am. " The chopper had a smooth passage till 8: 58 am when pilots stated encountering clouds.

Between 9.12 am and 9.16 am, the pilots spoke about red patches on the radar indicating that they travelled through dangerousseeming clouds. They also commented that the weather ahead was deteriorating rapidly."

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